Out-of-bounds read in Mastodon - #VU69421
Published: November 18, 2022
Vulnerability identifier: #VU69421
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in blurhash transcoder. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.
Affected software
Mastodon
Remediation
Install updates from vendor's website.
Mastodon - addressed in versions 3.4.9, 3.5.4, 4.0.0